Messages in this thread | | | Subject | Re: [PATCH v3 11/20] RDMA/core: introduce ib_dma_pci_p2p_dma_supported() | From | Max Gurtovoy <> | Date | Wed, 6 Oct 2021 01:31:06 +0300 |
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Logan,
On 9/17/2021 2:40 AM, Logan Gunthorpe wrote: > Introduce the helper function ib_dma_pci_p2p_dma_supported() to check > if a given ib_device can be used in P2PDMA transfers. This ensures > the ib_device is not using virt_dma and also that the underlying > dma_device supports P2PDMA. > > Use the new helper in nvme-rdma to replace the existing check for > ib_uses_virt_dma(). Adding the dma_pci_p2pdma_supported() check allows > switching away from pci_p2pdma_[un]map_sg(). > > Signed-off-by: Logan Gunthorpe <logang@deltatee.com> > --- > drivers/nvme/target/rdma.c | 2 +- > include/rdma/ib_verbs.h | 11 +++++++++++ > 2 files changed, 12 insertions(+), 1 deletion(-)
Looks good,
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
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